The term social refers to a characteristic of living organisms as applied to populations of humans and other animals. It always refers to the interaction of organisms with other organisms and to their collective co-existence, irrespective of whether they are aware of it or not, and irrespective of whether the interaction is voluntary or involuntary.
The word "Social" derives from the Latin word socii ("allies"), it is particularly derived from the Italian Socii states that historically allied with the Roman Republic, though they famously rebelled against Rome in the Social War of 91-88 BC.
In the absence of agreement about its meaning, the term "social" is used in many different senses and regarded as a fuzzy concept, referring among other things to:
Attitudes, orientations, or behaviors which take the interests, intentions, or needs of other people into account (in contrast to anti-social behaviour) has played some role in defining the idea or the principle. For instance terms like social realism, social justice, social constructivism, social psychology and social capital imply that there is some social process involved or considered, a process that is not there in regular, "non-social" realism, justice, constructivism, psychology, or capital.